PROFESSIONAL
My knowledge level in UI/UX skills
Figma
95%
UX Strategy
90%
Strategic thinking
80%
UI/Visual design
95%
User ability study
85%
Agile software development
80%
Project management
75%
I'M
Calvin Choi.
PRINCIPAL UX/PRODUCT DESIGNER
Amplifying User Voices for Over 15 Years
As a Principal UX Designer with over 15 years of experience, I specialize in designing and
developing mobile and web applications. I have a strong strategic UX background and a
passion for amplifying the voice of end-users to create exceptional user experiences.
Portfolio
Experience
2021 - present
Roche
Santa Clara, CA
Principal User Experience Designer
Managed design operations for regulated medical device software targeting chronic diseases like Cardiovascular and Multiple Sclerosis, ensuring high-quality delivery through click-thru prototypes and collaboration with product stakeholders and development teams. Defined UX strategies to enhance user experiences, developing user flows, wireframes, prototypes, and detailed UI specifications while integrating AI features to boost user productivity and engagement. Established UX standards and conducted extensive user research to align solutions with user expectations and regulatory requirements. Implemented a comprehensive localization process involving translation vendors, the design team, and the development team to support 12 different languages.
2020 - 2021
MedZed
Atlanta, GA
Lead UX Designer
Redesigned user workflows, reducing steps from 23 to 5, significantly boosting efficiency and user satisfaction. Defined UX strategy for Product and Engineering teams to ensure a seamless user experience in next-generation software. Conducted comprehensive user research to identify pain points and align solutions with user expectations.
2015 - 2020
Oracle
Redwood City, CA
Principal UX Designer
Conducted visualization studies and collaborated with Product Management and Engineering to enhance product value and next-generation Oracle Cloud applications, aligning with business needs and development constraints. Designed effective service solutions by translating business needs into user flows, wireframes, prototypes, and detailed UI specifications. Established comprehensive application style guides and UX standards to ensure consistency and quality.
2013 - 2015
Fortinet
Sunnyvale, CA
2012 - 2013
Loring Ward
San Jose, CA
Senior UI/UX Designer
Designed and enhanced user web experiences by creating wireframes, site maps, mood boards, HTML prototypes, and a comprehensive UI style guide, leading the corporate website redesign for improved responsiveness and aesthetics. Collaborated with R&D to solve UI/UX issues, ensuring intuitive interfaces. Led UI/UX initiatives, guiding the UI team, executing all visual design stages, and implementing user interface test cases to ensure high-quality results.
UI/UX Designer & Developer
Spearheaded a visualization study with Product Management and Engineering teams to enhance product value for customers, addressing next-generation application needs and navigating development constraints effectively.
2010 - 2012
Interactive Data
Hayward, CA
UI/Web Designer
Designed and maintained HTML/CSS web pages in an ASP environment, managed company websites with over 5,000 pages, and converted .mov files to Flash movies with custom controllers. Collaborated with developers to transition web pages to ASP, managed product advertising pages, and conducted A/B and multivariate testing to enhance web performance. Expert in web testing and analysis, ensuring effective optimization through comprehensive split testing.
